Lenovo 21AB004KIX Manuals

Manuals and User Guides for Lenovo 21AB004KIX. We have 1 Lenovo 21AB004KIX manual available for free PDF download: Hardware Maintenance Manual

Lenovo 21AB004KIX Hardware Maintenance Manual

Lenovo 21AB004KIX Hardware Maintenance Manual (111 pages)

Brand: Lenovo | Category: Laptop | Size: 25.27 MB

Table of Contents

Table of Contents
3
About this Manual

5
Chapter 1. Safety Information

7
Chapter 2. Important Service Information

27
Chapter 3. General Checkout

31
- What to Do First
  31
- Checkout Guide
  32
  - Diagnosing Problems
    32
  - Quick Test Programs
    32
  - UEFI Diagnostic Program
    33
  - Bootable Diagnostic Programs
    33
- Power System Checkout
  34
Chapter 4. Related Service Information

37
- Recovery Overview for the Windows 10 Operating System
  37
- Passwords
  38
- Power Management
  42
  - Sleep Mode
    42
  - Hibernation Mode
    42
- Symptom-To-FRU Index
  43
  - Numeric Error Codes
    43
  - Error Messages
    45
  - Beep Errors
    45
  - Beep Symptoms
    47
  - LCD-Related Symptoms
    47
  - Intermittent Problems
    48
  - Undetermined Problems
    48
Chapter 5. Special Keys

49
Chapter 6. Locations

51
- Locating Computer Controls, Connectors, and Indicators
  51
  - Front
    51
  - Base
    52
  - Left
    53
  - Right
    54
  - Bottom View
    55
- Locating Frus and Crus
  56
  - Major Frus and Crus
    57
  - LCD Frus and Crus
    59
  - Miscellaneous Parts
    62
  - Connector and Cable Guide
    63
- Looking up FRU Information
  64
Chapter 7. FRU Replacement Notices

65
- Service Tool Kit
  65
- Screw Notices
  66
- Retaining Serial Numbers
  66
  - Restoring the Serial Number of the System Unit
    67
  - Retaining the UUID
    67
Chapter 8. Removing or Replacing a FRU

69
Appendix A. Notices

105
Appendix B. Abbreviation and Acronym Table

107

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